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Reloading Berger Bullets


Reloading for 30-378 wby

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Unread 04-02-2014, 02:34 PM
Junior Member
Join Date: Feb 2014
Posts: 4
Reloading for 30-378 wby

I am brand new to reloading and my RCBS kit is on the way, I was wondering if there were any Weatherby guys out there who have loads they like for the 30-378. I have the Accumark rifle it shoots factory stuff great, but Im tired of paying $120+ per box of 20. Any suggestions you guys have are much appreciated from powder to bullets to primers, etc.
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Unread 04-02-2014, 03:18 PM
Silver Member
Join Date: Jun 2010
Posts: 101
Re: Reloading for 30-378 wby

My 30-378 likes 120gr. of 50BMG with a 180gr Hornady SST shoots one ragged hole. But I must warn you what my gun likes yours may not. 120gr is a very hot load. I would recommend a reliable loading manual and start at the low end and work my way up. Good luck! and Welcome to the art of hand loading.
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Unread 04-02-2014, 04:09 PM
Platinum Member
Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 8,652
Re: Reloading for 30-378 wby

98 gr of H-1000 over a Fed 215 M primer and under a 210 Berger Hunting VLD seated at mag box length which will be about 3.800" Expect 3050 fps, from a 26", 3120 from a 30" great accuracy and great killing potential to way out there.
This is my old tried and true load for the 30-378 load I hunted with for a few years with great success. It is very easy on that expensive and very soft Weatherby brass too.

But today we have the option of the 215 Berger Hybrid which could be substituted for the 210. And also the 230 which you should drop about 6 gr on the charge and work back up watching for pressure.

Good luck,

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Unread 04-02-2014, 05:37 PM
Platinum Member
Join Date: Aug 2013
Location: Arizona
Posts: 1,939
Re: Reloading for 30-378 wby

+1 for the Berger 210 VLD and 215M primers. Hope you saved the brass from the factory ammo. Search LRH site for tips on accurate reloading. You may need to try several powders and seating depths to dial it to minimum groups. Mine shoots H50 BMG, US869 and Retumbo equally well. Currently using Retumbo since I have a ton of it. Will test loads with the 215 Hybrid when I find some locally. As rdsewell said, all rifles are different and like different load combinations. Do your research first. Start with lower charges and work up. Be safe and good luck
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Unread 04-03-2014, 10:52 PM
Silver Member
Join Date: Apr 2009
Location: New Mexico
Posts: 240
Re: Reloading for 30-378 wby

I had great success with RETUMBO, fed 215M and regular 215 primers.......along with Barnes TTSX and Berger 210's and good speed but only MOA accuracy with the 230's. I shot over 1500 rds from my factory tube before it was shot.

Not trying to push you but I have a bunch of brass for sale in the classifieds if your interested:

FS-30-378 Weatherby Brass & RCBS dies
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Unread 07-25-2014, 11:46 AM
Junior Member
Join Date: May 2012
Location: far northern ND
Posts: 11
Re: Reloading for 30-378 wby

cwinner, I'm also looking for Retumbo loads. I have Berger manual and want to use 185 VLDs but want more velocity than book lists for max load -- would you care to share what you have learned about top loads for speed?
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Unread 07-26-2014, 09:10 PM
Bronze Member
Join Date: Feb 2012
Posts: 31
Re: Reloading for 30-378 wby

I have an accumark also. Started at 97 gr and ended up with decent groups at 102.5 gr Retumbo using 190 gr Berger VLD Hunting bullets. Tried Barnes 180 TTSX and did ok at 97.5 gr Retumbo. My gun likes the Bergers a little better. Haven't shot past 200 yet, too many guns, not enough time. Never checked speed, I always start low and stop when I find accurate loads.
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